Tooth-holding device for harrows



O No. 62l, 707.

W. J. RENKEN.

TOOTH HOLDING, DEVICE FOR HABROWS.

(Application filed Aug. 80, 1898.)

.(No Model.)

WITNESSES: INVENTOI? Pa te'nted Mar. 2|, I899.

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A TTOHNEYS NITED STATES" PATENT OFFICE.

VVILKE JANSEN RENKEN, OF COATSBURG, ILLINOIS.

TOOTH-HOLDING DEVICE FOR HARROWS.

SPECIFICATION forming part of Letters Patent No. 621,707, dated March21, 1899.

Application filed August 30,1898. Serial No. 689,841. (No model.)

To all whom it may concern:

Be it known that I,WILKE JANSEN REN- KEN, a citizen of the UnitedStates, residing at Ooatsburg, in the county of Adams and State ofIllinois, have invented a new and useful Improvement in Tooth HoldingDevices for Harrows, of which the following is a specification.

My invention relates. to harrows, and has for its object, among others,a device to advantageously hold and clamp the teethto the constructionand arrangement of the same,

which I shall first describe and then point out the novel features inthe appended claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure l is a perspective View of a portion of a barrow-beam with myimproved device attached thereto. Fig. 2 is a similar View of the holderdetached from the beam, and Fig. 3 is a vertical sectional elevation ofthe device as shown in Fig. 1.

The harroW-beam A is perceptibly rounded on one side, as at B, andprovided on its other side with a longitudinally-extending groove 0,forming ribs D.

The holder 10 for the tooth 12, which latter is of the usual spike form,is bifurcated to form holding-arms 13, each provided with an opening 14,extending therethrough from top to bottom, said openings being inalinement with each other and adapted to receive and hold the tooth 12.In its cross-bar or body portion 15 the holder is formed with a threaded aperture 16, in which is arranged to work the set-screw 17. Now itwill be seen that when the holder 10, with the barrow-tooth held by thearms 13, is inserted on thebeam A, as shown in Fig. 1, it mayconveniently be held at any place on said beam by the ac tion of theset-screw l7 binding againstthe rear face of the beam. It should also beob served that when the set-screw binds against the rear face of theharrow-beam the ribs D are forced tightly against the tooth binding itin arms 13 and that the tooth can thus be held at difierent elevationswith respect to the beam to cut the earth deeply or lightly.

- The means hereinbefore described for holding the barrow-tooth to thebeam are of cheap and efficient construction, enabling in a simplemanner the quick adjustment of the tooth to any point on the beam andalso the cutting of a deep or light furrow.

Having thus described my invention, what I claim, and desire to secureby Letters Pat out, is-' The combination with a barrow-beam providedwith ribs along its front face, of a toothholder consisting of across-bar formed with a screw-threaded aperture and arms arranged toembrace the beam, the said arms having openings at their ends for thereception of the barrow-teeth and being of such a length that the beammay have movement back and forth between the tooth and the cross-bar ofthe holder, and a set-screw Working in the and hold teeth of diiferentWidths, as and for the purpose set forth.

WILKE JANSEN RENKEN,

Witnesses:

-O. A. JAMES,

CHARLES M. GILMER.

